Musannaf Ibn Abi Shaybah

Hazrat Yahya bin Abbad bin Abdullah bin Zubair (may Allah be pleased with him) narrates from his father and grandfather that my father told me, who nursed me among Banu Murrah, he said: It is as if I am seeing Hazrat Ja'far (may Allah be pleased with him) on the day of the Battle of Mu'tah; he dismounted from his horse, which was reddish in color, then marked its leg, and joined the battle and continued fighting until he was martyred.